mysql alter table add column utf8

Question

有任何想法,如何添加列:

ALTER TABLE tname ADD COLUMN cname TEXT CHARACTER SET utf8 COLLATE utf8_general_ci IF NOT EXISTS;

这给出了一个错误:

ALTER TABLE tname ADD COLUMN cname TEXT CHARACTER SET utf8 COLLATE utf8_general_ci IF NOT EXISTS;

我需要使用utf-8编码添加新列.

谢谢

Answer 1

这不是ALTER TABLE 尝试的有效语法,

ALTER TABLE tname ADD COLUMN cname TEXT CHARACTER SET utf8 COLLATE utf8_general_ci;